TANNIN AQUATICS OFFERS A THOUGHTFULLY CURATED COLLECTION OF BOTANICALS, TROPICAL FISHES, AND UNIQUE AND USEFUL GOODS FOR CREATIVE AQUATIC HOBBYISTS.

"Tannin Aquatics is more than just a purveyor of aquatic goods. We’re a mood, an atmosphere, a space to be. A living, breathing, creative canvass upon which you express yourself in the aquatic world. We provide inspiration, information, and the materials with which you can perfect your craft and blur the lines between nature and the aquarium." -Scott Fellman, Owner

The Tint

Lasting leaf impact...The potential of mangrove leaf litter in aquariums.

May 20, 2018

I was thinking about our world of brown water, biofilms, and algae the other day, and it hit me that, as a community, we've actually made it easier on ourselves. In my brackish water system, as in my blackwater system, I regularly find myself topping off with new leaves. In this case, it's exclusively mangrove leaves. The interesting thing I'm finding out about mangrove leaves is that they seem to last a very long time before completely breaking down; often two months or more in my experience. Mangrove leaves possess specialized cell structures, including tannin cells (hello!), and sclerieds, structures within the leaf tissue which are thought to provide mechanical "support" to the leaves and discourage herbivorous predation. Perhaps this...

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Keeping it brown instead of green...

May 18, 2018

With all of the leaves and botanicals we toss in our tanks, how do we keep those tinted microcosms from becoming algae-smothered, green water swamps? A very good question...And you might be surprised to learn that massive algal growths in blackwater/brackish botanical-style aquariums are surprisingly uncommon, in my personal experience. Yes, despite all of the decomposing leaves, seed pods, and wood, you can still keep a botanical-style blackwater/brackish  tank clean and with minimal visible algal growths. The keys are pretty much like those you'd expect from managing any type of aquarium, really. They're all rooted in the basics of aquarium husbandry. And the backbone of any aquarium maintenance regimen is (wait for it...) water exchanges! I am a big one...

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The world beneath...some thoughts on freshwater sumps...

May 16, 2018

am a big believer in sumps. Yes sumps. "Seriously, Fellman....You're busy spouting reef-speak again!" I know, you have visions of an absurdly-complicated reef system, with every possible gadget attached to the tank, costing thousands of dollars/euro/pounds, etc., while yielding only marginal performance benefits over more "conventional" freshwater filtration systems, right?  Yeah, I hear that a lot. First off, don't think of a sump as a "filter" in the conventional sense. Think of it as a sort of "water management system" for your display. To call it a "filter" is way too simplistic, IMHO. A sump is literally the "nexus" of your water management system- a location to take care of many of the environmental management tasks in one convenient, discreetly...

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